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| 型號： | ISP1122A |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Universal Serial Bus stand-alone hub |
| 中文描述： | 通用串行總線獨(dú)立的樞紐 |
| 文件頁數(shù)： | 34/48頁 |
| 文件大?。?/td> | 1150K |
| 代理商： | ISP1122A |
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Philips Semiconductors
ISP1122A
USB stand-alone hub
Preliminary specification
Rev. 01 — 27 March 2000
34 of 48
9397 750 06986
Philips Electronics N.V. 2000. All rights reserved.
[1]
[2]
[3]
Test circuit: see
Figure 22
.
Excluding the first transition from Idle state.
Characterized only, not tested. Limits guaranteed by design.
Table 33: Dynamic characteristics: analog I/O pins (D
+
, D
); low-speed mode
[1]
V
CC
= 4.0 to 5.5 V; V
GND
= 0 V; T
amb
=
40 to
+
85
°
C; C
L
= 50 pF; R
PU
= 1.5 k
on D
to V
TERM
; unless otherwise specified.
Symbol
Parameter
Conditions
Driver characteristics
t
LR
rise time
C
L
= 200 to 600 pF;
10 to 90% of
|
V
OH
V
OL
|
t
LF
fall time
C
L
= 200 to 600 pF;
10 to 90% of
|
V
OH
V
OL
|
LRFM
differential rise/fall time
matching (t
LR
/t
LF
)
V
CRS
output signal crossover voltage
Hub timing (downstream ports configured as low-speed)
t
LHDD
hub differential data delay
see
Figure 19
t
LSOP
data bit width distortion after
SOP
t
LEOPD
hub EOP delay relative to t
HDD
see
Figure 20
t
LHESK
hub EOP output width skew
see
Figure 20
Min
Typ
Max
Unit
75
-
300
ns
75
-
300
ns
[2]
80
-
125
%
[2] [3]
1.3
-
2.0
V
-
-
-
300
+
60
ns
ns
see
Figure 19
[3]
60
[3]
0
-
-
200
+
300
ns
ns
[3]
300
Overcurrent input: OCn; power switch output: PSWn.
Reference voltage for overcurrent sensing: V
CC
(bus-powered mode) or V
SP/BP
(self-powered mode).
Fig 14. Overcurrent trip response timing.
handbook, halfpage
MBL032
0 V
overcurrent
input
VCC
0 V
power switch
output
ttrip
Vtrip
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISP1122ABD | Universal Serial Bus stand-alone hub |
| ISP1122AD | Universal Serial Bus stand-alone hub |
| ISP1122ANB | Universal Serial Bus stand-alone hub |
| ISP1122 | Universal Serial Bus stand-alone hub |
| ISP1122BD | Universal Serial Bus stand-alone hub |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISP1122ABD | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal Serial Bus stand-alone hub |
| ISP1122AD | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal Serial Bus stand-alone hub |
| ISP1122ANB | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal Serial Bus stand-alone hub |
| ISP1122BD | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal Serial Bus stand-alone hub |
| ISP1122D | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal Serial Bus stand-alone hub |
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